1 files changed, 114 insertions, 0 deletions
diff --git a/main.go b/main.go
new file mode 100644
index 0000000..c51a301
--- /dev/null
+++ b/main.go
@@ -0,0 +1,114 @@
+package main
+
+import (
+	"context"
+	"database/sql"
+	"encoding/json"
+	"fmt"
+	"io"
+	"net/http"
+	"os"
+
+	_ "github.com/lib/pq"
+
+	"github.com/gleich/logoru"
+	"github.com/joho/godotenv"
+	"golang.org/x/oauth2"
+	"golang.org/x/oauth2/endpoints"
+)
+
+var spotifyConfig oauth2.Config
+
+var db *sql.DB
+
+func Success(w http.ResponseWriter, r *http.Request) {
+	io.WriteString(w, "Success!")
+}
+
+func LandingPage(w http.ResponseWriter, r *http.Request) {
+	logoru.Info("Starting auth process")
+	spotifyUrl := spotifyConfig.AuthCodeURL("zyx")
+	http.Redirect(w, r, spotifyUrl, http.StatusFound)
+}
+
+func Privacy(w http.ResponseWriter, r *http.Request) {
+	io.WriteString(w, "No.")
+}
+
+func SpotifyAuth(w http.ResponseWriter, r *http.Request) {
+	r.ParseForm()
+	state := r.Form.Get("state")
+	if state != "zyx" {
+		http.Error(w, "Invalid State", http.StatusBadRequest)
+		return
+	}
+
+	code := r.Form.Get("code")
+	if code == "" {
+		http.Error(w, "Code not found", http.StatusBadRequest)
+		return
+	}
+
+	token, err := spotifyConfig.Exchange(context.Background(), code)
+	if err != nil {
+		http.Error(w, "Couldn't exchange code", http.StatusInternalServerError)
+		return
+	}
+
+	var bearer = "Bearer " + token.AccessToken
+
+	req, _ := http.NewRequest("GET", "https://api.spotify.com/v1/me", nil)
+
+	req.Header.Add("Authorization", bearer)
+
+	client := &http.Client{}
+
+	resp, err := client.Do(req)
+	if err != nil {
+		logoru.Critical("Couldn't get API information")
+		http.Error(w, "", http.StatusInternalServerError)
+		return
+	}
+	var generic map[string]interface{}
+	err = json.NewDecoder(resp.Body).Decode(&generic)
+	if err != nil {
+		return
+	}
+	logoru.Debug(generic)
+
+	_, err = db.Exec("INSERT INTO spotify (spotify_username, spotify_token, spotify_token_expires, spotify_refresh_token) VALUES ($1, $2, $3, $4)", generic["display_name"], token.AccessToken, token.Expiry, token.RefreshToken)
+
+	if err != nil {
+		logoru.Error(err.Error())
+		return
+	}
+}
+
+func main() {
+	err := godotenv.Load()
+	if err != nil {
+		logoru.Critical("Could not load .env")
+	}
+
+	spotifyConfig = oauth2.Config{
+		ClientID:     os.Getenv("SPOTIFY_CLIENT_ID"),
+		ClientSecret: os.Getenv("SPOTIFY_CLIENT_SECRET"),
+		Scopes:       []string{"user-modify-playback-state", "user-read-email"},
+		RedirectURL:  fmt.Sprintf("%s/oauth/spotify", os.Getenv("BASE_URL")),
+		Endpoint:     endpoints.Spotify,
+	}
+
+	db, err = sql.Open("postgres", os.Getenv("POSTGRES_URL"))
+	if err != nil {
+		logoru.Critical("Could not open database connection")
+		return
+	}
+
+	http.HandleFunc("/", LandingPage)
+	http.HandleFunc("/oauth/spotify", SpotifyAuth)
+	http.HandleFunc("/success", Success)
+	http.HandleFunc("/privay", Privacy)
+
+	logoru.Info("Starting client")
+	logoru.Critical(http.ListenAndServe(fmt.Sprintf(":%s", os.Getenv("LISTEN_PORT")), nil))
+}